p,span,del{
	background-color: green;
	width:200px;
	height:300px;
	margin: 10px auto;
	text-align: center;
}
input{
	width:80px;
	height:30px;
	text-align: center;
	margin:auto;
	}
a{
	display:block;    /* 转换为块元素 */
	width:200px;
	height:300px;
	border:1px solid red;
}